114375 Features: Get strength, durability, and security for your crampons with a lightweight Frameflex Carbon fiber frame that makes for a light boot for fat ascents Your feet stay dry and warm in the waterproof lining constructed with a combination of heat-retaining 3M Thinsulate and GORE-TEX waterproof laminate Get a serious grip on any surface with the Vibram Nepal outsoles Protect your feet from unexpected jumps or long stretches of walking with the BiMicro midsole to 2 layers of microporous rubber that are thicker at the heel to resist compression While the upper protects your feet and ankles from abrasion, it does not restrict movement thanks to a pliable combination of low-stretch Schoeller Grundware and micro fiber Specifications: Weight per pair: 3 lb 118 oz Upper: micro fiber and low-stretch Schoeller fabric Midsole: microporous rubber Outsole: rubberSpecifications based on size 85